	@media screen and (min-width:1200px) {
	  html {
	    font-size: 20px;
	  }
	}

	@media screen and (min-width:800px) and (max-width:1200px) {
	  html {
	    font-size: 16px;
	  }
	}

	@media screen and (max-width:800px) {
	  html {
	    font-size: 16px;
	  }
	}

	* {
	  margin: 0;
	  padding: 0;
	  box-sizing: border-box;
	}

	html,
	body {
	  width: 100%;
	  height: 100%;
	  font-family: '楷体';
	  overflow: hidden;
	}

	#left {
	  width: 20rem;
	  height: 10rem;
	  margin: 2rem auto;
	  text-align: center;
	  border: 0.08rem solid #DCDFE6;
	  padding: 1rem;
	  border-radius: 6px;
	}

	#left h3 {
	  margin-bottom: 1rem;
	  color: #409EFF;
	}

	#left p {
	  margin-bottom: 1rem;
	}

	#left #open {
	  display: block;
	  float: left;
	  margin-left: 8rem;
	  margin-right: 2rem;
	  font-size: 2rem;
	  cursor: pointer;
	}

	#left b {
	  display: block;
	  float: left;
	  margin-top: 0.5rem;
	  font-size: 1.2rem;
	}

	#right {
	  position: fixed;
	  top: 0;
	  left: 0;
	  width: 100%;
	  height: 0%;
	  background-color: black;
	  color: darkgray;
	  transition: all 1.5s;
	}

	#right ul {
	  width: 90%;
	  height: 100%;
	  list-style: none;
	  opacity: 0;
	}

	#right ul li {
	  width: 90%;
	  height: 15%;
	  text-align: center;
	  padding: 1rem 0;
	  color: darkgray;
	  cursor: pointer;
	}

	#right ul li:hover {
	  color: white;
	}

	#right #close {
	  cursor: pointer;
	  color: white;
	  font-size: 2rem;
	  float: right;
	}

	#right #close:hover {
	  color: red !important;
	}